Method of controlling liquid ejection for marginless printing with waste liquid recess portion

Abstract

A method of recording control includes ejecting first liquid to a recording medium and a recessed portion that is situated at the outside of at least one of sides of the recoding medium thereby a recording is performed without a margin at the at least one of the sides of the recording medium; and ejecting second liquid to the recessed portion to wash away the first liquid in the recessed portion in a case where a predetermined condition is satisfied.

1. A method for controlling recording performed by a recording head operable to eject at least a first liquid and a second liquid, the method comprising:
 ejecting the first liquid to a recording medium and a recessed portion situated at an outside of at least one of sides of the recording medium and having a waste liquid passage connecting to a waste liquid tank thereby a recording is performed without a margin at the at least one of the sides of the recording medium; 
 measuring an amount of the first liquid having been ejected to the recessed portion within a predetermined time period; 
 ejecting second liquid to the recessed portion to wash away the first liquid in the recessed portion in a case where a predetermined condition is satisfied, wherein 
 the predetermined condition includes a condition in which the amount of the first liquid is no more than a predetermined amount, 
 the first liquid having washed away is let to the waste liquid tank, 
 the second liquid has a greater tendency not to be viscous than the first liquid, and 
 the first and second liquid are colored ink. 
 
   
   
     2. The method according to  claim 1 , further comprising measuring a time period having elapsed since processing for executing the recording is started, wherein the predetermined condition includes a condition in which the time period is equal to a predetermined time period. 
   
   
     3. The method according to  claim 2 , wherein the second liquid is ejected to a recessed portion that is situated at the outside of at least one of sides of a largest recording medium used in the predetermined time period. 
   
   
     4. The method according to  claim 1 , wherein the second liquid is ejected after processing for executing the recording is finished. 
   
   
     5. The method according to  claim 1 , wherein the recording medium includes a first recording medium, and a second recording medium having a larger size than the first recoding medium, and the second liquid is ejected to a recessed portion that is situated at the outside of at least one of sides of the second recording medium. 
   
   
     6. The method according to  claim 1 , wherein the second liquid is ejected to recessed portions that are situated at opposite sides of the recording medium. 
   
   
     7. The method according to  claim 1 , wherein the first liquid includes a first type of liquid and a second type of liquid, and the predetermined condition includes a condition in which an usage rate of the first type of liquid is no less than a predetermined usage rate. 
   
   
     8. The method according to  claim 7 , wherein the first type of liquid has tendency to be viscous. 
   
   
     9. The method according to  claim 7 , wherein the predetermined usage rate is proportion of an amount of consumption of the first type of liquid to an amount of consumption of the first liquid. 
   
   
     10. A computer program stored on a computer readable storage medium for controlling recording performed by a recording head operable to eject at least a first liquid and a second liquid, the computer program executing the steps of:
 ejecting the first liquid to a recording medium and a recessed portion situated at an outside of at least one of sides of the recording medium and having a waste liquid passage connecting to a waste liquid tank thereby a recording is performed without a margin at the at least one of the sides of the recording medium; 
 measuring an amount of the first liquid having been ejected to the recessed portion within a predetermined time period; 
 ejecting second liquid to the recessed portion to wash away the first liquid in the recessed portion in a case where a predetermined condition is satisfied, wherein 
 the predetermined condition includes a condition in which the amount of the first liquid is no more than a predetermined amount, 
 the first liquid having washed away is let to the waste liquid tank, 
 the second liquid has a greater tendency not to be viscous than the first liquid, and 
 the first and second liquid are colored ink. 
 
   
   
     11. A liquid ejecting apparatus operable to execute the method comprising the steps of:
 ejecting the first liquid to a recording medium and a recessed portion situated at an outside of at least one of sides of the recording medium and having a waste liquid passage connecting to a waste liquid tank thereby a recording is performed without a margin at the at least one of the sides of the recording medium; 
 measuring an amount of the first liquid having been ejected to the recessed portion within a predetermined time period; 
 ejecting second liquid to the recessed portion to wash away the first liquid in the recessed portion in a case where a predetermined condition is satisfied, wherein 
 the predetermined condition includes a condition in which the amount of the first liquid is no more than a predetermined amount, 
 the first liquid having washed away is let to the waste liquid tank, 
 the second liquid has a greater tendency not to be viscous than the first liquid, and 
 the first and second liquid are colored ink.